Black Plastic Ducting Air Inlet / Air Outlet with Gravity Shutters - 4 inch / 100mm round male spigot on the back of the grille fits inside Kair 100mm Round Female Duct Pipe (Part: DUCVKC250) or 102mm flexible hose (Part: DUCP002/102/35).;Non-return shutter flaps close automatically when not in use. Stops unpleasant odours, noises, or draughts flowing back through your duct. Gravity flap - no need for springs that break. Available in 5 colours: White (Part: DUCVKC243), Terracotta (Part: DUCVKC243-TC), Brown (Part: DUCVKC243-BR), Beige (Part: DUCVKC243-BG), and Black (Part: DUCVKC243-BK). Built to last out of high-quality Polystyrene/Polypropylene plastic Material. Max /;Easy to install, just push-fit duct and fittings together. Perfectly suited for use as a termination point with your Bathroom or Kitchen extractor fan, Hydroponics fan, or In-Line Extract Fan. This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive ventilation, positive input, air conditioning, HVAC, and Heat Recovery Systems.;Wipe-clean durable design for indoor or outdoor use. Suitable to use in compliance with Part F Building Regulations. Airflow performance independently tested by BSRIA or BRE. Free Air: 7200mm2. Static Pressure Drop in Pascals: 15 l/s = 10.94 Pa - 30 l/s = 18.59 Pa - 60 l/s = 24.21 Pa.;Genuine Kair Product & covered by the Kair 100% Satisfaction Guarantee for your peace of mind. Made in the UK. Compatible with the extensive Kair SYS-100 range of fittings, outlets, and grilles.

• Kair Gravity Grille - 100mm Round Spigot - Black - SYS-100 Ducting 4 inch Plastic Air Vent PVC Ventilation Duct Shutter Flap Non-Return Outlet Gravity Grill DUCVKC243-BK

Kair Gravity Grille - 100mm Round Spigot - Black - SYS-100 Ducting 4 inch Plastic Air Vent PVC Ventilation Duct Shutter Flap Non-Return Outlet Gravity Grill DUCVKC243-BKKair